A015987 - OEIS

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A015987 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`-1`
`2`		`1`
`3`		`-1`
`4`		`1`
`5`		`-1`
`6`		`1`
`7`		`-1`
`8`		`1`
`9`		`-1`
`10`		`1`
`11`		`-1`
`12`		`1`
`13`		`-1`
`14`		`1`
`15`		`-1`
`16`		`1`
`17`		`-1`
`18`		`1`
`19`		`-1`
`20`		`1`
`21`		`-1`
`22`		`1`
`23`		`0`
`24`		`0`
`25`		`0`
`26`		`0`
`27`		`0`
`28`		`0`
`29`		`0`
`30`		`0`
`31`		`0`
`32`		`0`
`33`		`0`
`34`		`0`
`35`		`0`
`36`		`0`
`37`		`0`
`38`		`0`
`39`		`0`
`40`		`0`
`41`		`0`
`42`		`0`
`43`		`1`
`44`		`-1`
`45`		`1`
`46`		`-1`
`47`		`1`
`48`		`-1`
`49`		`1`
`50`		`-1`
`51`		`1`
`52`		`-1`
`53`		`1`
`54`		`-1`
`55`		`1`
`56`		`-1`
`57`		`1`
`58`		`-1`
`59`		`1`
`60`		`-1`
`61`		`1`
`62`		`-1`
`63`		`1`
`64`		`-1`
`65`		`1`
`66`		`0`
`67`		`0`
`68`		`0`
`69`		`0`
`70`		`0`
`71`		`0`
`72`		`0`
`73`		`0`
`74`		`0`
`75`		`0`
`76`		`0`
`77`		`0`
`78`		`0`
`79`		`0`
`80`		`0`

[1,-1,1,-1,1,-1,1,-1,1,-1,1,-1,1,-1,1,-1,1,-1,1, -1,1,-1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 1,-1,1,-1,1,-1,1,-1,1,-1,1,-1,1,-1,1,-1,1,-1,1,-1, 1,-1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]

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Last modified September 8 15:19 EDT 2024. Contains 375753 sequences. (Running on oeis4.)